Page 18 of 50

The shop air supply line will later be attached to the inlet of VAG 1687. - Close valve -3- before gauge.
- Close valve -4- after gauge.
- Remove female fitting from tester (arrow) and install an appropriate
"male" air fitting that will connect to your shop air supply line (
WARNING!).
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Page 19 of 50

21-15

WARNING!

Use only approved air fittings to adapt shop
air supply line to VAG 1687 tester.